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Fix many DnD errors related to #462

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This commit is contained in:
Nico Mexis 2023-02-22 10:40:35 +01:00
parent def596a5e8
commit f006a3a0e6
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GPG key ID: 27D6E17CE092AB78
1 changed files with 18 additions and 3 deletions
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21
src/main/java/the/bytecode/club/bytecodeviewer/gui/resourceviewer/DraggableTabbedPane.java
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@ -127,8 +127,11 @@ public class DraggableTabbedPane extends JTabbedPane {
} }
private TabTransferData getTabTransferData(DropTargetDropEvent a_event) { private TabTransferData getTabTransferData(DropTargetDropEvent a_event) {
Transferable t = a_event.getTransferable();
if (!t.isDataFlavorSupported(FLAVOR)) return null;
try { try {
return (TabTransferData) a_event.getTransferable().getTransferData(FLAVOR); return (TabTransferData) t.getTransferData(FLAVOR);
} catch (Exception e) { } catch (Exception e) {
e.printStackTrace(); e.printStackTrace();
} }
@ -137,8 +140,11 @@ public class DraggableTabbedPane extends JTabbedPane {
} }
private TabTransferData getTabTransferData(DropTargetDragEvent a_event) { private TabTransferData getTabTransferData(DropTargetDragEvent a_event) {
Transferable t = a_event.getTransferable();
if (!t.isDataFlavorSupported(FLAVOR)) return null;
try { try {
return (TabTransferData) a_event.getTransferable().getTransferData(FLAVOR); return (TabTransferData) t.getTransferData(FLAVOR);
} catch (Exception e) { } catch (Exception e) {
e.printStackTrace(); e.printStackTrace();
} }
@ -147,8 +153,11 @@ public class DraggableTabbedPane extends JTabbedPane {
} }
private TabTransferData getTabTransferData(DragSourceDragEvent a_event) { private TabTransferData getTabTransferData(DragSourceDragEvent a_event) {
Transferable t = a_event.getDragSourceContext().getTransferable();
if (!t.isDataFlavorSupported(FLAVOR)) return null;
try { try {
return (TabTransferData) a_event.getDragSourceContext().getTransferable().getTransferData(FLAVOR); return (TabTransferData) t.getTransferData(FLAVOR);
} catch (Exception e) { } catch (Exception e) {
e.printStackTrace(); e.printStackTrace();
} }
@ -266,6 +275,7 @@ public class DraggableTabbedPane extends JTabbedPane {
public void dragOver(final DropTargetDragEvent e) { public void dragOver(final DropTargetDragEvent e) {
TabTransferData data = getTabTransferData(e); TabTransferData data = getTabTransferData(e);
if (data == null) return;
if (getTabPlacement() == JTabbedPane.TOP if (getTabPlacement() == JTabbedPane.TOP
|| getTabPlacement() == JTabbedPane.BOTTOM) { || getTabPlacement() == JTabbedPane.BOTTOM) {
@ -309,6 +319,7 @@ public class DraggableTabbedPane extends JTabbedPane {
} // if } // if
TabTransferData data = getTabTransferData(e); TabTransferData data = getTabTransferData(e);
if (data == null) return false;
if (DraggableTabbedPane.this == data.getTabbedPane() if (DraggableTabbedPane.this == data.getTabbedPane()
&& data.getTabIndex() >= 0) { && data.getTabIndex() >= 0) {
@ -336,6 +347,7 @@ public class DraggableTabbedPane extends JTabbedPane {
} // if } // if
TabTransferData data = getTabTransferData(e); TabTransferData data = getTabTransferData(e);
if (data == null) return false;
if (DraggableTabbedPane.this == data.getTabbedPane() if (DraggableTabbedPane.this == data.getTabbedPane()
&& data.getTabIndex() >= 0) { && data.getTabIndex() >= 0) {
@ -403,6 +415,7 @@ public class DraggableTabbedPane extends JTabbedPane {
} }
private void convertTab(TabTransferData a_data, int a_targetIndex) { private void convertTab(TabTransferData a_data, int a_targetIndex) {
if (a_data == null) return;
DraggableTabbedPane source = a_data.getTabbedPane(); DraggableTabbedPane source = a_data.getTabbedPane();
int sourceIndex = a_data.getTabIndex(); int sourceIndex = a_data.getTabIndex();
if (sourceIndex < 0) { if (sourceIndex < 0) {
@ -459,6 +472,7 @@ public class DraggableTabbedPane extends JTabbedPane {
m_isDrawRect = false; m_isDrawRect = false;
return; return;
} // if } // if
if (a_data == null) return;
if ((a_data.getTabbedPane() == this) if ((a_data.getTabbedPane() == this)
&& (a_data.getTabIndex() == next && (a_data.getTabIndex() == next
@ -492,6 +506,7 @@ public class DraggableTabbedPane extends JTabbedPane {
m_isDrawRect = false; m_isDrawRect = false;
return; return;
} // if } // if
if (a_data == null) return;
if ((a_data.getTabbedPane() == this) if ((a_data.getTabbedPane() == this)
&& (a_data.getTabIndex() == next && (a_data.getTabIndex() == next